c/o
abbreviation
c/o
abbreviation
Britannica Dictionary definition of C/O
care of
◊ This abbreviation is used in addresses when you are sending a letter or package to a person by using someone else's address or the address of a company. The letter was addressed to “John Smith c/o Merriam-Webster, Inc.” [+] more examples [-] hide examples [+] Example sentences [-] Hide examples